Pith Number

pith:D53NJI2Q

pith:2014:D53NJI2QPVKDSL3ZAMR2762HIX

not attested not anchored not stored refs pending

On homology of finite topological spaces

Miguel Ottina, Nicol\'as Cianci

arxiv:1410.6111 v2 · 2014-10-22 · math.AT · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D53NJI2QPVKDSL3ZAMR2762HIX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:55:17.808554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f76d4a3507d54392f790323affb4745cb88ee66610c1d805ae2002035f44247

Aliases

arxiv: 1410.6111 · arxiv_version: 1410.6111v2 · doi: 10.48550/arxiv.1410.6111 · pith_short_12: D53NJI2QPVKD · pith_short_16: D53NJI2QPVKDSL3Z · pith_short_8: D53NJI2Q

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/D53NJI2QPVKDSL3ZAMR2762HIX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1f76d4a3507d54392f790323affb4745cb88ee66610c1d805ae2002035f44247

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b0981faf370df134bdff24849bead3ae5a9ac72fb770214482371bb9a568dcc",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-10-22T17:21:58Z",
    "title_canon_sha256": "4ef9f64bb13c2e7c1c526dd5e8539344eb2d7881f2073f682c0adcb1ad6c9857"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6111",
    "kind": "arxiv",
    "version": 2
  }
}